I am writing a scientific paper. Is the sentence below right in the tense?
A classic example is provided by a model solved rigorously by Smith four decades ago.
The problem is, is the verb 'is' in contradiction with the 'four decades ago'?
I am writing a scientific paper. Is the sentence below right in the tense?
A classic example is provided by a model solved rigorously by Smith four decades ago.
The problem is, is the verb 'is' in contradiction with the 'four decades ago'?
No, this is correct.
While the study was conducted long ago, this classic example is provided today.
The time frame of providing the example is current, right now, as you read it, so you use the present tense.